Skip to content

Latest commit

 

History

History
122 lines (81 loc) · 3.03 KB

README.md

File metadata and controls

122 lines (81 loc) · 3.03 KB
Raw

Ruby wrapper Overmind

This gem wraps the Overmind library and includes all the dependencies needed to work with it.

Overmind is a process manager for Procfile-based applications and tmux. With Overmind, you can easily run several processes from your Procfile in a single terminal.

Learn more about Overmind here.

Installation

Note: At the moment, Overmind supports Linux, *BSD, and macOS only.

Requirements

This gem already has all the necessary dependencies and doesn't require any libraries to be installed. But for users of the *BSD system, it requires the installation of tmux.

  • FreeBSD:
  pkg install tmux

Note:: You can find more information about the tmux installation here

Installation with Ruby

  gem install overmind

Installation with Rails

Overmind can improve your DX of working on multi-process Ruby on Rails applications. First, add it to your Gemfile:

  group :development do
    gem "overmind"
  end

We recommend installing it as a part of your project and not globally, so the version is kept in sync for everyone on your team.

Then, for simplicity, we suggest generating a bin stub:

  bundle binstubs overmind

Finally, change the contents of bin/dev (or add this file) as follows:

  #!/usr/bin/env sh

  bin/overmind start -f Procfile.dev

Now, your bin/dev command uses Overmind under the hood.

One of the biggest benefits is that now you can connect to any process and interact with it, for example, for debugging a web process:

  bin/overmind connect web

Usage

Running processes

Overmind reads the list of processes you want to manage from a file named Procfile. It may look like this:

web: bin/rails server
worker: bundle exec sidekiq
assets: gulp watch

To get started, you just need to run Overmind from your working directory containing a Procfile:

  # in Rails project
  bin/overmind start
  
  # Ruby
  overmind start

Specifying a Procfile

If a Procfile isn't located in your working directory, you can specify the exact path:

  bin/overmind start -f path/to/your/Procfile
  OVERMIND_PROCFILE=path/to/your/Procfile bin/overmind start

Connecting to a process

If you need to gain access to process input, you can connect to its tmux window:

  bin/overmind connect <process_name>

You can safely disconnect from the window by hitting Ctrl b (or your tmux prefix) and then d.

You can omit the process name to connect to the first process defined in the Procfile.

Restarting a process

You can restart a single process without restarting all the other ones:

  bin/overmind restart sidekiq

Stopping a process

You can stop a single process without stopping all the other ones:

  bin/overmind stop sidekiq

More features and abilities are here